Samsung 18650 26FM



This is one of the oldest cells invented on Battery Bro. Perhaps we should call it a legacy battery - it first came in 2009 and since then, the price has been dropping. At 2600mAh and 5.2A it is applicable to many battery packs that do not benefit from the latest cutting-edge lithium-ion cells.

The price of the 26F is very competitive, lending itself to being an important industrial cell. It is still extremely popular today for use in battery packs.

This is the cell that is most like the blue Chinese "NCA" 18650 2600mAh cells which are popular on the market now. 

Battery specifications:

  • Model: ICR18650-26FM
  • Manufacturer: Samsung
  • Country of Origin: South Korea (F) or Malaysia (FM)
  • Chemistry: ICR
  • Max. continuous discharge current: 5.2A
  • Nominal capacity: 2600 mAh
  • Nominal voltage: 3.6 V
  • Charging voltage: 4.20 +/- 0.05 V

Download the Samsung 26F/FM Spec Sheet

Battery Bro has your back

Never worry about quality when buying from Battery Bro. We make sure you have the latest, greatest cutting-edge batteries, every time. 


18650 batteries are commodity cells, and as a wholesaler we understand how important price is to your bottom-line. As such, we offer international shipping directly from Asia to save money at higher quantities.


We ship worldwide via UPS, DHL, and Special Line.

21-day full refund

Full 21-day refund on all orders. Buy our products, and if you're not satisfied, you get your money back.

Quality guarantee

Battery Bro takes several measures to make sure your batteries are of the highest quality:

  • We only deal with manufacturers or authorized distributors.
  • We inspect every battery and do our own testing.
  • We track each battery case with a unique authenticity code.

In Asia, 18650 batteries are binned by quality into A, B, and lower bins. C-bin batteries are often recycled from battery packs. Lower bin batteries will underperform and may be dangerous.

Battery Bro guarantees that all our batteries are Grade A. 


Take a look at our 18650 battery safety infographic

Some general tips

  • Do not exceed max. continuous discharge ratings.
  • Keep temperature under 60 degrees Celsius.
  • Do not carry loose batteries in your pocket.

Free Safety Booklets

For retailers selling 18650 batteries: 

18650 safety booklet

Increase battery sales and protect yourself from liability with 18650 safety booklets.

Customers ignorant to battery safety are not likely to purchase 18650 batteries or upgrade to MODs which require them.

You, the store owner can show your customers your shop cares about their safety

Simply bundle our safety booklets with the batteries you sell.

  • Did you know? In 2015, an e-cig shop was sued for one million dollars when a battery short-circuited in a customer's pocket. A safety booklet could have prevented that and protected the retailer from a lawsuit.

    Get 50 free booklets on your first purchase of 20 cells or more.

    Visit the battery booklet product page.